TY - JOUR
T1 - PREVIEW study - influence of a behavior modification intervention (PREMIT) in over 2300 people with pre-diabetes: intention, self-efficacy and outcome expectancies during the early phase of a lifestyle intervention
AU - Huttunen-Lenz, Maija
AU - Hansen, Sylvia
AU - Christensen, Pia
AU - Larsen, Thomas Meinert
AU - Sandø-Pedersen, Finn
AU - Drummen, Mathijs
AU - Adam, Tanja C
AU - Macdonald, Ian A
AU - Taylor, Moira A
AU - Martinez, J Alfredo
AU - Navas-Carretero, Santiago
AU - Handjiev, Svetoslav
AU - Poppitt, Sally D
AU - Silvestre, Marta P
AU - Fogelholm, Mikael
AU - Pietiläinen, Kirsi H
AU - Brand-Miller, Jennie
AU - Berendsen, Agnes A M
AU - Raben, Anne
AU - Schlicht, Wolfgang
N1 - CURIS 2018 NEXS 310
PY - 2018
Y1 - 2018
N2 - Purpose: Onset of type 2 diabetes (T2D) is often gradual and preceded by impaired glucose homeostasis. Lifestyle interventions including weight loss and physical activity may reduce the risk of developing T2D, but adherence to a lifestyle change is challenging. As part of an international T2D prevention trial (PREVIEW), a behavior change intervention supported participants in achieving a healthier diet and physically active lifestyle. Here, our aim was to explore the influence of this behavioral program (PREMIT) on social-cognitive variables during an 8-week weight loss phase.Methods: PREVIEW consisted of an initial weight loss, Phase I, followed by a weight-maintenance, Phase II, for those achieving the 8-week weight loss target of ≥ 8% from initial bodyweight. Overweight and obese (BMI ≥25 kg/m2) individuals aged 25 to 70 years with confirmed pre-diabetes were enrolled. Uni- and multivariate statistical methods were deployed to explore differences in intentions, self-efficacy, and outcome expectancies between those whoachieved the target weight loss (“achievers”) and those who did not (“non-achievers”).Results: At the beginning of Phase I, no significant differences in intentions, self-efficacy and outcome expectancies between “achievers” (1,857) and “non-achievers” (163) were found. “Non-achievers” tended to be younger, live with child/ren, and attended the PREMIT sessions less frequently. At the end of Phase I, “achievers” reported higher intentions (healthy eating χ2(1)=2.57; P <0.008, exercising χ2(1)=0.66; P <0.008), self-efficacy (F(2; 1970)=10.27, P <0.005),and were more positive about the expected outcomes (F(4; 1968)=11.22, P <0.005).Conclusion: Although statistically significant, effect sizes observed between the two groups were small. Behavior change, however, is multi-determined. Over a period of time, even small differences may make a cumulative effect. Being successful in behavior change requires that the “new” behavior is implemented time after time until it becomes a habit. Therefore, having even slightly higher self-efficacy, positive outcome expectancies and intentions may over time result in considerably improved chances to achieve long-term lifestyle changes.
AB - Purpose: Onset of type 2 diabetes (T2D) is often gradual and preceded by impaired glucose homeostasis. Lifestyle interventions including weight loss and physical activity may reduce the risk of developing T2D, but adherence to a lifestyle change is challenging. As part of an international T2D prevention trial (PREVIEW), a behavior change intervention supported participants in achieving a healthier diet and physically active lifestyle. Here, our aim was to explore the influence of this behavioral program (PREMIT) on social-cognitive variables during an 8-week weight loss phase.Methods: PREVIEW consisted of an initial weight loss, Phase I, followed by a weight-maintenance, Phase II, for those achieving the 8-week weight loss target of ≥ 8% from initial bodyweight. Overweight and obese (BMI ≥25 kg/m2) individuals aged 25 to 70 years with confirmed pre-diabetes were enrolled. Uni- and multivariate statistical methods were deployed to explore differences in intentions, self-efficacy, and outcome expectancies between those whoachieved the target weight loss (“achievers”) and those who did not (“non-achievers”).Results: At the beginning of Phase I, no significant differences in intentions, self-efficacy and outcome expectancies between “achievers” (1,857) and “non-achievers” (163) were found. “Non-achievers” tended to be younger, live with child/ren, and attended the PREMIT sessions less frequently. At the end of Phase I, “achievers” reported higher intentions (healthy eating χ2(1)=2.57; P <0.008, exercising χ2(1)=0.66; P <0.008), self-efficacy (F(2; 1970)=10.27, P <0.005),and were more positive about the expected outcomes (F(4; 1968)=11.22, P <0.005).Conclusion: Although statistically significant, effect sizes observed between the two groups were small. Behavior change, however, is multi-determined. Over a period of time, even small differences may make a cumulative effect. Being successful in behavior change requires that the “new” behavior is implemented time after time until it becomes a habit. Therefore, having even slightly higher self-efficacy, positive outcome expectancies and intentions may over time result in considerably improved chances to achieve long-term lifestyle changes.
KW - Faculty of Science
KW - Diabetes mellitus
KW - Weight loss
KW - Goals
KW - Habits
KW - Cognition
U2 - 10.2147/PRBM.S160355
DO - 10.2147/PRBM.S160355
M3 - Journal article
C2 - 30254498
VL - 11
SP - 383
EP - 394
JO - Psychology Research and Behavior Management
JF - Psychology Research and Behavior Management
SN - 1179-1578
ER -